A connector includes an electric wire and a housing having an electric wire accommodating portion which is opened upward and which is configured to hold the electric wire. A folded portion folded back to one side toward a cover of the electric wire is provided at a tip end part of a contact portion of a conductor core wire of the electric wire. A groove that is opened forward and extends in a front-rear direction of the housing is formed on a front end surface located at a front end of the wire accommodating portion of the housing. The folded portion is engaged to the groove so that the electric wire is held by the housing.